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发明公开
CN107031644A 混合动力汽车的主动式振动控制方法及装置 有权

混合动力汽车的主动式振动控制方法及装置
摘要：
本发明涉及混合动力汽车的主动式振动控制方法及装置，能够通过利用了FFT的频谱分析来控制非正常振动成分。混合动力汽车的主动式振动控制方法包括：根据电机或发动机的位置信息选择基准角信号的步骤；根据上述基准角信号生成基准角的步骤；设定快速傅立叶变换(FFT)的周期并对FFT信号进行分析的步骤；设定基于发动机转速和负载的基准波普的步骤；根据上述基准波普抽出各不同频率的振动成分的步骤；选择上述各不同频率的振动成分中的去除对象频率来进行合算，并执行逆FFT的步骤；确定基于发动机转速和负载的振幅比的步骤；以及根据上述振幅比和发动机扭矩执行各不同频率的主动式振动控制的步骤。
摘要（英）：

The present disclosure relates to an apparatus and a method for active vibration control of a hybrid electric vehicle. Forms of the present disclosure may provide a method for active vibration control of a hybrid electric vehicle that may include detecting an engine speed or a motor speed; selecting a reference angle signal based on position information of a motor or an engine; setting up a period of fast Fourier transform (FFT) and performing FFT of the engine speed or the motor speed corresponding to the period of the FFT from the reference angle signal; setting up a reference spectrum according to an engine speed and an engine load; extracting a vibration components to be removed based on information of the reference spectrum; summing vibration components to be removed according to the frequencies and performing inverse FFT; determining an amplitude ratio according to the engine speed and the engine load; and performing active vibration control of each frequency based on the information of the amplitude ratio and the engine torque.

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